36118539009 has 128 divisors (see below), whose sum is σ = 63999360000. Its totient is φ = 20369543040.

The previous prime is 36118539001. The next prime is 36118539013. The reversal of 36118539009 is 90093581163.

It is not a de Polignac number, because 36118539009 - 2³ = 36118539001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36118539001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 66762279 + ... + 66762819.

It is an arithmetic number, because the mean of its divisors is an integer number (499995000).

Almost surely, 2^36118539009 is an apocalyptic number.

It is an amenable number.

36118539009 is a deficient number, since it is larger than the sum of its proper divisors (27880820991).

36118539009 is an frugal number, since it uses more digits than its factorization.

36118539009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 36118539009 in words is "thirty-six billion, one hundred eighteen million, five hundred thirty-nine thousand, nine".